Multiple glWidgets with Lists and Textures.

[Gadaviel]

Hello,

I need to make a program with 4 different QGLWidget().
There isn't any problem as long as I don't use glNewList() or glGenTexture()... but when I try to use one of these functions (my model contain more than 10^6 triangles and I must display the texture, so I don't have the choice) all gone wrong... the glwidgets stop displaying anything.
I think the problem comes from the function makecurrent() but if I don't do the makecurrent I can't create the new lists.


So I want to know if anybody had met the same problem, and how to fix it.


You can find my code and more informations (in French) there.


Thank you for everything.

[Wali]

You need to share a gl context with each of your gl widgets.
i.e.

void CreateGLWidgets(QWidget *parent_widget)
{
QGLContext * my_context  new QGLContext;
QGLWidget * widget_1 = new QGLWidget( parent_widget,my_context);
QGLWidget * widget_2 = new QGLWidget( parent_widget,my_context);
QGLWidget * widget_3 = new QGLWidget( parent_widget,my_context);
QGLWidget * widget_4 = new QGLWidget( parent_widget,my_context);
}

void CreateGLWidgets(QWidget *parent_widget)
{
QGLContext * my_context  new QGLContext;
QGLWidget * widget_1 = new QGLWidget( parent_widget,my_context);
QGLWidget * widget_2 = new QGLWidget( parent_widget,my_context);
QGLWidget * widget_3 = new QGLWidget( parent_widget,my_context);
QGLWidget * widget_4 = new QGLWidget( parent_widget,my_context);
}

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